Anthony iske



(No Model.)

A ISKE Swinging Treadle for Sewing Machines.

Patented Sept. 14,1880.

. ATTORNEYS UNITED STATES PATENT OFFICE.

ANTHONY ISKE, or LANCASTER, PENNSYLVANIA, ASSIGNOR TO ISRAEL L. LANnIs,or SAME rLAoE.

SWINGING TREADLE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 232,130, datedSeptember 14, 1880.

Application filed Apr-i119, 71880. (No model.)

To all whom it may concern:

Be it known that I, ANTHONY IsKE, a citizen of the United States,residing at Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in SwingingTreadles for Sewin g-Machines, and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others 1 o skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and toletters or fig ures of reference marked thereon, which form a part ofthis specification.

This invention relates to treadles for operating sewing-machines andother mechanism. The nature of said invention consists in the peculiarsuspending an d bracing devices of the said treadle, and in theconstruction, combination, and arrangement of the various parts of in ytreadle mechanism herein after particularly set forth and claimed.

in the accompanying drawings, Figurel represents a perspective view ofmy improved trcadle mechanism. Fig. 2 represents a side view of thesame, and Fig. 3 represents a detail view of the treadle with itssuspendingyoke and the arm attached thereto.

In said drawings, A designates the frame of a sewing-machine or othermechanism to which my improved treadle is attached, the top of the saidframe having been removed to show the devices hereinafter described. Bdesignates a rod extending across the upper part of said 3 5 frame, fromside to side thereof, and serving as a support for a yoke, O, which issleeved thereon by means of perforated lugs formed in or on its ends, soas to allow said yoke to swing freely. Bent treadle-barD and treadle 0Eare suspended from said yoke, said parts bein g cast together or rigidlyconnected, so that they swing as a whole on rod B when said treadle ismoved backward or forward. Stops F, rigidly secured upon rod B, preventthe end- 4 5 wise motion of said yoke and keep the treadle in its properposition in the middle of the lower part of the machine. These stops areprovided with lugs f, whereby the said rod B may be attached to theunder side of the machine top or table. When thus attached the rod neednot be extended from side to side of the frame.

G designates a rearwardly-extending arm rigidly connected to one end ofyoke G and having its rear end pivotally attached to one end of pitmanH. The other end of said pit- 5 5 man is similarly attached to awrist-pin, I, arranged eccentrically upon driving-wheel J.

This treadlc may be operated from the knee or hip and either sitting orstanding. It is es pecially adapted to the use of persons with stiii' 6oankles or artificial legs. The required motion of the foot and limb is aperfectly natural one. The swinging motion of the treadle thus caused istransmitted easily, through the before-mentioned connections G H, to thewrist-pin I, 6 5 which, being firmly attached to wheel J, necessarilyrevolves about the center of said wheel and compels the rotation of thewheel itself.

The wheel may be rotated in either direction, the one chosen dependingon the position of the wrist'pin with respect to the center of the wheelat starting, or, more exactly, with respect to the deadpoints, which arerespectively a little above and behind and below and in front of thewheel center. The rotation of the wheel can, of course, also be reversedby reversing the motion of the said treadle.

The yoke (J oby iously braces the trcadle-bar D. Nevertheless, it ispossible to dispense with said yoke and hang the said bar directly fromsaid rod B.

Other changes may also be made in the various parts of my treadlemechanism without departing from the spirit and scope of my invention.

Of course, the arm and pitman, as well as the other devices, must be ofsuch proportions as to operate in the manner herein described.

When at rest the treadle naturally takes a sh ghtly-forward position, soas to be convenient 0 to the foot of the operator.

If the wheel catches on a dead-point it is easily relieved by a slightbackward push of the operators foot. The treadle-bar D yields slightlyto such pressure, and its elasticity 9 5 causes a rebound of all thedevices as soon as said pressure is removed, and this frees themechanism from the dead-lock.

Having thus fully described my invention, ing-plates f, allsubstantially as and for the what I claim as new, and desire to secureby purposes set forth.

Letters Patent, is- In testimony whereof I affix my signature Thecombination of treadle E,eurvede1ast1o in presence of two witnesses.

5 rod D bifurcated l'iraeing-yoke 0, having per- ANTHONY ISKE.

forated ends, and rigid arm G, extending ob- Witnesses: liquely downwardand backward from said ZURIEL SWOPE, yoke, with rod 13, having stops Fand fasten- 1?. DONNELLY.

